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Information × Registration Number 0216U000805, 0111U000076 , R & D reports Title Peculiarities of the operation and restoration of freshwater ecosystems in the condinions of complex impact of nuclear power plants popup.stage_title Head Gudkov Dmytro Igorevich, Registration Date 25-02-2016 Organization Institute of Hydrobiology of National Academy of Ukraine popup.description2 Period of semi-clean of water mass from 137Cs in the Chernobyl exclusion zone reservoirs during 1997-2014 years was estimated in 6,2-12,8 years. Physical decay of radionuclides including water purification components is 20-43%, and the rest - biogeochemical and hydrological processes deposit of 137Cs in bottom sediments and its removal outside the water into the river Pripyat due to hydraulic connection. Registered period of semi cleaning water from 90Sr was within 6,0-9,2 years. Physical decay of radionuclides in the process of reducing the specific activity of the water is 21-33%. In reservoirs of the left-bank floodplain area of r.Pripyat and in the cooling pond of the Chornobyl NPP significant decrease in the specific activity of 90Sr in water for a period of research was lacking. Within 30 days after the additional radiation doses of 2.5, 5 and 10 December The dynamics of quantitative and qualitative changes in the peripheral blood of fish (Carassius sarassius L.), living in conditions of chronic exposure (dose absorbed power 150-240 IGC / h. ) and background level radionuclide pollution (power absorbed dose of about 0.12 IGC / h.). The decrease in short-quantitative indicators of blood (leukocytes and platelets) from fish ponds reference for actions additional acute exposure, indicating their higher radiation sensitivity. At the same time, fish from ponds contaminated with radionuclides respond to additional exposure significantly higher level of the pathogenesis of peripheral blood formed elements.5481 Product Description popup.authors Беляев В.В. Волкова О.М. Каглян О. Є. Кленус В.Г. Кузьменко М. І. Протасов О.О. Силаєва А.А. Шевцова Н.Л. Широка З.О. popup.nrat_date 2020-04-02 Close